Spinning and drawing roll for textile operations.



H. F. BUSCH.

SPINNING AND DRAWING ROLL FDRTEXTILE oPenNmNs.

APPLICATION FILED MAR. l2. I9i Z.

1 ,26 9 68% a Patented J 11110 18, 1918.

INVENTOR WITNESVSES l l t th t 11 d i generally layer over another untilthe requisite thickplicable to all forms of such top rolls-'irreness 1sobtained. Preparatory to th1s wind- 'spective of their particular sizeand'shape. g, both suljfaces 0f the SHIPS o d Heretofore t 11 f thiclass h e b with an suitable glue or cement. After I the threads or fithat rolls provided with t .Spinning and Drawing Rolls for TextileOperations,- of which sTATEsPA OFFICE.

33am 1'. .BUSGE, or umvALn, PENNSYLVANIA, AssmNon. 'ro Amus'raoNe coaxso, or rmsnunen; rnNNsYLvANIA, A conroaArIoN or PENNSYLVANIA.

v srnnmte AND DRAWING ROLL FOB TEXTILE OPERATIONS.

Patented Jane 1s, 191s.

1,269,682. s ecimen of Lctteraratent. Application men larch 19,1917.Serial No. 154,121.

T 0 all'whom it may concern: as often. An examination of such rollswhich have been in continuous use for a period of nine months, 'ves noindication of wear. The increas lifevof the rolls greatlyreducesthenumber of'reserve rolls which must be carried in stock by a mill.

In the accompanying drawings, the numeral 2 designates the steel body ofone form of drawing roll having the reduced central portion 3 upon"which rests the usual weight saddle, not shown. The enlarged endportions 4 of the roll are each provided with my improved covering,shown at 5. These coverings consist of sheets of artificial cork. Iprefer -Be it known that I HERMAN F. Boson, a citizen of the Unitedtates, residing at Millvale, Allegheny county, Pennsylvania, haveinvented a new and useful Improvement in the following is a full, clear,and exact description, reference being had to the accompan ing drawings,formingpart of this spec' cation, in whichigure 1 is a plan view of oneform of roll embodying my invention.

Fig. 2 is a section on the line 11-11 ofthat these covermgsshall belaminated-and that they be forined by cutting the artificial cork intorelatively thin strips which are then wound upon the rolls, one

Figi 1.-

y invention has relation to certain new and useful improvements in rollsof the character widely used in all textile spinning.

and drawing processes, and more particuthe win ing is completed, therolls are thorprovided with a covering of leather secured oughly bakedin an to the metal body of the roll over a cloth backing or lining, thelatter'acting as a cushion to increase the resiliency of the coverinOther covering materials have been trie usually with but little succes,leather being now almost universally employed.

I have discovered that greatly superior rolls may be obtained byproviding them with a covering consisting of artificial cork.

Natural cork has not proven satisfactory for this purpose, 11gpparentlyfor the reason that it is not s ciently homogeneous in character andalso because its surface soon becomes glazed to such an extent that itdoes not exert a roper frictional grip on A covering of artificial corksuch as is provided by my invention provides an extremely oven at a'sultable baking renheit. The covered portions are then By making-thecoverin s in laminated form in this manner, I not on y avoid thenecessity for the use of any molding or clamping devices in applying thecoverings to the rolls, but a superior covering is provided, as thelaminated structure is less liable to give way in service.

It is important that the artificial cork used should be of the propercharacter and density. 1 have obtained excellent results from a mixtureconsisting{ of one hundred pounds of granulated cor of glycerin and-fivepounds of gelatin. also add about six ounces of paraformaldeserviceableand durable roll having a wearing quality better than that of leather;which will work under less pressure than is required with leathercovered rolls and which does not pick up fiber to'nearly as great anextent as the leather coverings. The coverings provided by my inventioncan be readily and easily applied and renewed, and possess the degree ofresiliency and frictional qualities which are desirable for this work.Actual tests of m invention show eimproved coveringpick up less thanone-half the quantity of fiber that is p'cked up'hy leather coveredrolls and only have-to be cleared I sure are then subjected to bakingoperations such as are customarily employed in the ing blocks are thencut into strips of the desired width. and thickness.

twenty pounds hyde in dry powdered form for the purpose Thesemanufacture of artificial cork. The result-.

temperature of say from 17 5 to 200 Fahturned or ground to the exactsize desired.

It is also impprtant that the cork granules employed in the mixtureshall neitherbe too coarse nor toofine. I prefer to employ cork granulesnone of which has a dimension greater than three thirty-seconds of aninch and which will pass through a screen having eleven meshes to theinch. Preferably,

' also, none of the particles should be finer layers of the coverin thanNo. 40 mesh. In practice, the bulk of the material is usually betweensixteen and twentgeight mesh.

As store indicated, my invention is not limited for use 'in connectionwith the particular form of roll illustrated in the drawing, but isgenerally applicable to the forms of spinning and drawing rolls used intextileoperations.

I claim:

1. A roll having a covering of artificial cork wound in convolutelayers; substantially as described. i

2. A roll having a covering of artificial cork wound in convolutelayers, adjacent being cemented to each other, substantial y asdescriM-a eases 3. A spinning and drawing roll having a covering ofartificial corkin thin sheet form wound upon itself in convolute layers,substantially as described.

4. A spinning and drawing roll having a covering of artificial cork inthin sheet form wound upon itself in convolute layers, the adjacentlayers bein cemented to each other on both surfaces, su stantially asdescribed.

5. A spinni and drawing roll having a covering of art icial cork in thinsheet form wound upon itself in convolute layers, the

adjacent layers being cemented to each other m hand. y HERMAN r. enscn.

